RA8870 is a TFT LCD controller which supports the character and graphic mixed display. It is designed to
meet the requirement of middle size TFT module up to 640x480 pixels with characters or 2D graphic
application. With internal RAM, RA8870 can supports 65K color for 320x240 dots TFT Panel, 4K color for
640x240/320x480 display , or 4K color for 320x240 dots with 2-Layers. With external RAM, it supports up
to 65K color for 640x480 panel.

The embedded CGROM is capable to display the alphaset of international standard ISO 8859-1/2/3/4. It includes 256x4 characters and can satisfies almost English or Eurpean language family countries. For graphic usage, RA8870 supports a 2D Block Transfer Engine(BTE) that is compatible with 2D Bit BLT function for processing the mass data transfer function. The geometric speed-up engine provides user an easy way to draw the programmable geometric shape by hardware, like line, square and circle. Besides, many powerful functions are combined with RA8870, such as screen rotation function, scroll function, graphic pattern, 2-layer mixed display and font enlargement function. These functions will save user a large of software effort during developement period.

RA8870 is a powerful and cheap choice for color application. To reduce the system cost, RA8870 provide
low cost 8080/6800 MCU I/F, a flexible 4/5-wires Touch Panel controller, PWM for adjusting panel
back-light and some GPIOs. With the RA8870 design-in, user can achieve an easy-to-use, low-cost and
high performace system compared with the other solution.

• Support Text/Graphic Mixed Display Mode.
• Clock Source: External X'tal Clock Input with Internal PLL.
• Color Depth TFT: 256/4K/65K Colors.
• Supporting MCU Interface: 8080/6800 with 8/16 Data Bus Width.
• Internal DDRAM Size: 230KB
• Embedded 10KB Character ROM with Font Size 8x16 Dots and Supporting Character Set
  of ISO8859-1/2/3/4.
• Support GB-2312 and BIG-5 Encoding with External Font ROM of Font Size 16x16 Dots.
• External DDRAM up to 512Kbyte*16.
• Font Enlargement X1, X2, X3, X4 for Horizontal or Vertical Direction.
• Support TFT 8/12/16-Bits Generic RGB Interface and Analog TFT Panel Interface.
• Flexible TCON Block Compatible with Most Analog Panel.
• Screen Display Rotation 90°, 180° and 270° for Different Panel Type.
• Support Font Vertical Rotation.
• Support Block Scroll for Vertical or Horizontal Direction.
• Embedded Block Transfer Engine (BTE) with 2D Function.
• Embedded Geometric Speed-up Engine.
• Text Cursor for Character Writing.
• 32X32 Pixel Graphic Cursor Function.
• Supporting TFT Panel Resolution:
  _ 2 Layers : Up to 320x240 Pixels with Internal DDRAM.
  _ 1 Layer : Up to 640x480 Pixels.
• Support 256 User-defined 8x16 Characters.
• Support 32 User-defined Patterns of 8x8 Pixels.
• 2 programmable PWM for Back-Light Adjusting or Other's Application.
• Embedded 4 or 5-Wires Touch Panel Controller.
• 6 Sets of Programmable GPIO (GPIO0~5).
• Sleep Mode with Low Power Consumption.
• Operation Voltage: 3.0V~3.6V
• Package: TQFP-128pin.